TY - BOOK ID - 140197553 TI - Ecological principles for economic development AU - Dasmann, Raymond F. AU - Milton, John P. AU - Freeman, Peter H. PY - 1973 PB - London-New York-Toronto Wiley DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:140197553 AB - ER -